#!/bin/sh
# Bump one platform's semantic version in versions.mk.
#   bump.sh <server|linux|macos|windows|bsd|android|all> <major|minor|patch>
# Bumping android also increments its monotonic versionCode.
set -eu

platform=${1:-}
part=${2:-patch}
root=$(cd "$(dirname "$0")/.." && pwd)
file=$root/versions.mk

case $platform in
server|linux|macos|windows|bsd|android|all) ;;
*)
	echo "usage: make bump PLATFORM=<server|linux|macos|windows|bsd|android|all> PART=<major|minor|patch>" >&2
	exit 2
	;;
esac
case $part in
major|minor|patch) ;;
*)
	echo "bump.sh: PART must be major, minor or patch" >&2
	exit 2
	;;
esac

bump_one() {
	key=VERSION_$(echo "$1" | tr 'a-z' 'A-Z')
	current=$(sed -n "s/^$key[[:space:]]*:=[[:space:]]*\([0-9.]*\).*/\1/p" "$file")
	[ -n "$current" ] || { echo "bump.sh: $key not found in versions.mk" >&2; exit 1; }
	major=$(echo "$current" | cut -d. -f1)
	minor=$(echo "$current" | cut -d. -f2)
	patch=$(echo "$current" | cut -d. -f3)
	case $part in
	major) major=$((major + 1)); minor=0; patch=0 ;;
	minor) minor=$((minor + 1)); patch=0 ;;
	patch) patch=$((patch + 1)) ;;
	esac
	next=$major.$minor.$patch
	sed -i.bak "s/^$key[[:space:]]*:=.*/$(printf '%-16s := %s' "$key" "$next")/" "$file"
	printf '%s %s -> %s\n' "$1" "$current" "$next"
	if [ "$1" = android ]; then
		code=$(sed -n 's/^ANDROID_VERSION_CODE[[:space:]]*:=[[:space:]]*\([0-9]*\).*/\1/p' "$file")
		sed -i.bak "s/^ANDROID_VERSION_CODE[[:space:]]*:=.*/ANDROID_VERSION_CODE := $((code + 1))/" "$file"
		printf 'android versionCode %s -> %s\n' "$code" "$((code + 1))"
	fi
}

if [ "$platform" = all ]; then
	for p in server linux macos windows bsd android; do bump_one "$p"; done
else
	bump_one "$platform"
fi
rm -f "$file.bak"